Systems_Overview

Systems_Overview - TheSystemDevelopmentLifeCycle What is an...

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The System Development Life Cycle What is an information system (IS) ? Hardware, software, data, people, and procedures that work together to produce quality information Hardware, software, data, people, and procedures that work together to produce quality information System—Set of components that interact to achieve common goal System —Set of components that interact to achieve common goal Businesses use many types of systems Businesses use many types of systems
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The System Development Life Cycle What are the phases of the system development cycle ? Phase 1. Planning Phase 2. Analysis Phase 3. Design Phase 4. Implementation Phase 5. Support Review project requests Prioritize project requests Allocate resources Identify project development team Conduct preliminary investigation Perform detailed analysis activities: Study current system Determine user requirements Recommend solution Acquire hardware and software, if necessary Develop details of system Develop programs, if necessary Install and test new system Train users Convert to new system Conduct post-implementation system review Identify errors and enhancements Monitor system performance
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Arrange tasks into phases (groups of activities) The System Development Life Cycle What are guidelines for system development? Involve users (anyone for whom system is being built) Develop clearly defined standards (procedures company expects employees to follow)
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The System Development Life Cycle Who participates in the system development life cycle?
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The System Development Life Cycle What is a systems analyst ? Responsible for designing Responsible for designing and developing and developing information system information system Liaison between users Liaison between users and IT professionals and IT professionals
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The System Development Life Cycle What is the project team ? Consists of users, systems analyst, and other IT professionals Formed to work on project from beginning to end Project leader—one member of the team who manages and controls project budget and schedule
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The System Development Life Cycle What is feasibility ? Measure of
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This note was uploaded on 01/15/2012 for the course PHYSIC 110 taught by Professor David during the Spring '11 term at Alma College.

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Systems_Overview - TheSystemDevelopmentLifeCycle What is an...

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